Methods of distortion measurement of panoramic camera lens

Distortion is the aberration of the principal ray ( when the chief rays from image and object are not parallel, the point of intersection of image chief ray and ideal image plane are not coincident with the point of the ideal image). Since the lens distortion impact directly on the image quality of cameras, it is essential to measure the lens distortion. The distortion of a panoramic camera lens was measured with the equipments available. The measurement results are presented.